use Khmer unicode in ArcGIS v9.x or 10

sokleang

Dear sir/madam,
i have one question. can i use Khmer unicode in ArcGIS v9.x or 10 i try to show but it display Question Mark only. This is Khmer Unicode font " ???????????????????????????????????? "
so do you have any way to use it. Thank You

SE1

The issue of Cambodian font (Khmer Unicode) appearing with extra spaces between characters was identified as a bug in  ArcGIS Desktop version 10.1 Service Pack 1 by ESRI Support via ESRI Thailand. A bug report was created, and the bug number is NIM085578. This defect is currently being worked on by ESRI.